The utility model relates to the technical field of electric equipment measuring device, in particular to a reactor sensing value testing device, which comprises a circuit breaker, a fuse, a contactor, an electric voltage regulator, a high frequency current transformer, a main control board, a liquid crystal touch screen, a three-phase 380V power supply connected with the input end of the circuit breaker, which is in turn connected with a fuse, a contactor, an electric voltage regulator and a tested reactor In series, the high-frequency current transformer is arranged between the electric voltage regulator and the tested reactor, and the measured current signal is input to the main control board, which is connected with the LCD touch screen through the RS485 communication cable. The reactor inductance test device obtained by the utility model has the following advantages: 1. The inductance value of the product is detected by the actual operation of the tested reactor at 0.8-2 times of the rated current, and the product performance is detected by the closest to the actual working condition of the product. 2. When the voltage \u2011 current method is used to calculate the inductance value of the tested reactor, the measurement is more accurate and the error is smaller.
【技术实现步骤摘要】
一种电抗器感值测试装置
本技术涉及电力设备测量装置
,尤其是一种电抗器感值测试装置。
技术介绍
调谐型无功补偿装置的串联电抗器、磁控电抗器、大功率电力电子变流器中电抗器等大功率电抗器在生产过程中对电抗器的电感值精度要求较高。目前市场上对于小功率的电感(电抗器)的专用电感测量仪表通常采用电桥法、谐振法、数字化测量法。不管是哪种测试方法,在测量电感的时候,绝大多数仪表给电感的测试信号电压仅仅为50mV~2V,电流10mA~50mA,激励的磁场强度很小(多数情况下仅在初始磁导率阶段),得出的电感值就会误差比较大,而且,该类产品通常检测项目单一,不能满足对大功率电抗器线性度、温升等性能的检测。电桥法(交流电桥)测量大功率电抗器感值的时候,只是把电抗器的输入电压为理想工频电压,电流也为理想工频电流,忽略了谐波电压的存在,电网频率的变化,导致测量感值测量误差较大。因此,大功率电抗器在生产制造过程中,一台可在电抗器0.8~2In电流范围内,快速、精确检测电抗器感值的装置就尤其重要。
技术实现思路
本技术的目的是为了解 ...
【技术保护点】
1.一种电抗器感值测试装置,其特征是:包括断路器、熔断器、接触器、电动调压器、高频电流互感器、主控板、液晶触摸屏,三相380V电源与断路器的输入端连接,所述断路器依次与熔断器、接触器、电动调压器和被测电抗器串联,高频电流互感器设置在电动调压器与被测电抗器之间,并用于测量被测电抗器的输入电流,且将测量的电流信号输入主控板,主控板对电流信号进行计算,所述主控板与液晶触摸屏通过RS485通信电缆连接;主控板与接触器、电动调压器电连接,主控板控制接触器和电动调压器动作。/n
【技术特征摘要】
1.一种电抗器感值测试装置,其特征是:包括断路器、熔断器、接触器、电动调压器、高频电流互感器、主控板、液晶触摸屏,三相380V电源与断路器的输入端连接,所述断路器依次与熔断器、接触器、电动调压器和被测电抗器串联,高频电流互感器设置在电动调压器与被测电抗器之间,并用于测量被测电抗器的输入电流,且将测量的电流信号输入主控板,主控板对电流信号进行计算,所...
【专利技术属性】
技术研发人员:陈龙,韩宗锋,安祥龙,王自慧,
申请(专利权)人:浙江朗松智能电力设备有限公司,
类型:新型
国别省市:浙江;33
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